"found his body on the side of the road"
Approaching the Salang Pass
Creative Commons Attribution Share AlikeApproaching the Salang Pass - Credit: Michal Vogt
Ahmad Zahir died on 14 June 1979, supposedly in a car crash on the Salang Pass road.  The cause of death was never fully established, although it was claimed the autopsy had revealed he had been shot in the head.  If so, it is likely he was murdered on the orders of the communist government that he so publicly opposed.